Combined ventilator and smoke-consumer.



J. WOOD. COMBINED VENTILATOR AND SMOKE OONSUMER.

' APPLICATION FILED OGT.21, 1908.

Patented Nov. 30, 1909.

INVENTOH ZZmeJ 76362 By ATTORNEYS 3 II M W/T/VESSES NITED STATES PATENT OFFICE.

JAMES WOOD, 0F NOROTON, CONNECTICUT.

COMBINED VENTILATOR AND SMOKE-CONSUMER.

To all whom it may concern:

Be it known that I, JAMES VVooD, a citizen of the United States, and a resident of Noroton, in the county of F airfield and State of Connecticut, have invented a new and Improved Oombined Ventilator and Smoke- Consumer, of which the following is a full, clear, and exact description.

My invention relates to stoves and furnaces, my more particular purpose being to provide a simple and cheap appliance for regulating the draft, facilitating the combustion of the smoke, ventilating the room through which the smoke pipe passes, collecting unburned cinders from the smoke and enabling these cinders' to be readily ejected.

In accomplishing the objects above enumerated, my invention promises economy of fuel and time.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective showing a section of the smoke pipe with my appliance mounted thereupon and in use; Fig. 2 is a substantially central vertical section through the mechanism shown in Fig. 1, taken upon the line 22 of Fig. 3, the movable tube being shown in elevation; Fig. 3 is a substantially central vertical section upon the line 33 of Fig. 2, looking in the direction of the arrow, and consequently showing the various parts from an angle difiering from that characterizing Fig. 2, the mechanism otherwise, however, being identical; Fig. 4 is a horizontal section upon the line 44 of Fig. 2, looking in the direction of the arrow, and showing the various adjusting tubes and means for manipulating the same; Fig. 5 is a plan view of the section of the smoke pipe shown in Figs. 1, 2 and 3, and exhibits in addition a pair of throat plates for preventing retrogression of smoke and gases undesirably blowing down the smoke r p At 6 is a section of a smoke pipe, this section being provided with circular 0 enings 6 6 A semicylindrical jacket of sheet metal is entirely separate from the smoke pipe 6 but is adapted to fit closely against the same, as will be understood from Fig. 2. The jacket 7 is provided with a backing 8 of sheet metal held thereupon by Specification of Letters Patent.

Application filed October 21, 1908.

Patented Nov. 30, 1909. Serial No. 458,797.

aid of heads 9, 10, the jacket 7, back 8 and heads 9, 10 together constituting a smoke box. The jacket 7 is provided with openings 11, 12 adapted to register with the openings 6 6 in the smoke pipe 6. Connected rigidly with the jacket 7 and adapted to extend diametrically through the smoke pipe 6 is a tube 13 provided with large openings 15, and further provided with a flange 13", the latter extending into the smoke box and being slightly curved as indicated in Fig. 4, and engaging the jacket 7 as a means for securing the tube 13 and jacket rigidly together.

Fitting telescopically into the tube 13 is a tube 14, provided with a concaved end 14 extending into the smoke box, as will be understood from Fig. 4. The tube 14 is provided with a pin l6 extending outwardly, and this pin is adapted to enter a bayonet slot 16 in the tube 13. Mounted telescopically within the tube 14 is another tube 17 provided with perforations 18, and further provided with a head 19 having a handle 20. By grasping the handle 20, the tube 17 may be drawn out of the tube 14 to any desired extent and may be pushed back into said tube until the head 19 engages the outer end thereof.

The tube 14 may be secured temporarily within the tube 13 by causing the pin 16 to enter the bayonet slot 16, as indicated in Fig. 4, the operator then giving the tube 14 a slight twist by aid of the handle 20 so as to prevent the pin 16 from readily leaving the bayonet slot, as will be understood from Fig. 4. The section 6 is provided with throat plates 21 (see Figs. 3, 4) each of substantially crescent shape in general outline, the throat plates being mounted upon opposite sides of the tube 13 and co-acting with the same, as will be understood from Fig. 3, so as to prevent the undue escape of gases around the tube 13.

The operation of my device is as follows: The smoke box is mounted in position by extending the tube 13 diametrically through the section 6, so that the jacket 7 engages the outer surface of this section directly, the openings 11, 12 of the smoke box being thus brought into registry with the openings 6 6 of the section 6. The operator next inserts the tube 14 and places within this tube the tube 17. Suppose, now, that it be desired to employ the device as a smoke consumer. For this purpose the tube 17 is drawn out a little so that some air can pass through the perforations 18. The smoke passes uwardly through the section 6, going through the openings 6 11, 12, 6 back into the smoke pipe. The smoke being hot is commingled while in the smoke box with the air passing in through the perforations 18, and is thus effectively consumed. Any unconsumed particles of the smoke, together with particles of soot and ashes dropped down upon the head 10, may be removed afterward by taking off the smoke box and ejecting the particles in question through the openings 11, 12.

In order to regulate the draft, ordinarily all that is necessary is to adjust the position of the tube 17. In some instances, however, where a strong draft is required, the tube 14 may be turned slightly so as to disengage the pin 1(3 from the bayonet slot, the tube 14 being then turned and drawn outwardly so as to leave the smoke and gases free to pass upwardly through the openings 15, thereby, to some extent, avoiding the necessity for passing through the smoke box. In doing this, the tube 17 may within proper bounds be adjusted to any desired extent, relatively to the tube 14. In other words, some of the perforations 18 may be exposed or not, as desired.

From the above description it will be noted that the tubes 13, 14 and 17 together serve to give a very fine regulation to the draft. By drawing the tube 14 outwardly the smoke can pass upwardly with comparative freedom, being unobstructed except by the size of the opening 15. Vhen, however, the tube 14 remains in position and the tube 17 is drawn out, as indicated in Fig. 2, the smoke can not pass through the opening 15 in the tube 13 although air can pass directly into the opening 18. By having two separate tubes 14 and 17, the entrance of the air through the hole 18 does not result in an immediate mixture of this air with the air in the smoke pipe 6, but by passing the air through the openings 18 and tube 17 and into the backing 8, the air is partially heated and thoroughly mixed with the smoke before entering the smoke pipe-thereby facilitating combustion of the smoke.

The device above described may be used for promoting any of the above-mentioned objects, and also for producing exceptional variations in the character and strength of the draft. For purposes of regulating the draft upon a stove or furnace, the device may be employed within a wide range of limits; that is to say, the smoke and gases can be allowed to pass almost unobstructed upwardly through the smoke pipe, or may also be caused to pursue a circuitous route through the smoke box. Again, practically any desired proportion of the smoke and gases can be caused to go vertically upward through the smoke pipe without entering the smoke box, or made to go through the smoke box without entering the smoke pipe.

I have found upon actual trial that the regulation furnished by this device is in many respects exceptionally good, and that by aid of the device the consumption of fuel may be materially reduced.

IVhile the drawings show my preferred form of the invention, I do not limit myself to the exact construction shown.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. The combination of a smoke pipe of substantially cylindrical form, a smoke box having a concave surface fitting upon said smoke pipe, said smoke pipe and said smoke box having openings in registry with each other for the purpose of passing smoke from said smoke pipe through said smoke box, a tube mounted upon said smoke box and extending diametrically through said smoke pipe, and means controllable at will for regulating a draft of air through said tube and into said smoke box.

2. The combination of a smoke pipe, a smoke box mounted thereupon and adapted to convey smoke from one part of said smoke pipe to another part thereof, a tube connected with said smoke box and extending through said smoke pipe at a point in termediate said parts thereof, a second tube mounted telescopially in relation to said first-mentioned tube, and a third tube mounted telescopically in relation to said firstmentioned tube and said second-mentioned tube, said third mentioned tube being provided with perforations and movable by hand relatively to the other tubes for the purpose of controlling the supply of air into said smoke box.

3. The combination of a smoke pipe, a tube extending therethrough and provided with openings for facilitating the passage of air and gases directly through said smoke pipe, a tube mounted telescopically within said first-mentioned tube for the purpose of controlling the amount of air and gases passing through said smoke pipe, and a perforated tube mounted within said second mentioned tube and movable relatively to the same for the purpose of controlling the inflow of air into said second-mentioned tube.

4. The combination of a smoke pipe, a tube extending therethrough and provided with openings for facilitating the passage of air and gases within said smoke pipe, and throat plates mounted within said smoke pipe and extending toward said tube in order to guide said smoke and gases into said openings.

5. The combination of a smoke pipe, a smoke box connected with said smoke pipe 'at a plurality of points, for the purpose of conveying the smoke from one part of said smoke pipe to another part thereof, a tube extending through said smoke pipe, a second tube telescopically fitting said first-mentioned tube and communicating With said smoke box, and also communicating with the open air, and means for securing said second-mentioned tube rigidly in relation to said first-mentioned tube.

6. The combination of a smoke pipe, a smoke box communicating therewith at a plurality of points for the purpose of conveying the smoke from one part to another of said smoke pipe, a tube extending through said smoke pipe and opening into said smoke box, and a second tube mounted telescopically in relation to said first-mentioned tube and movable relatively to the same, said second-mentioned tube being provided With holes for admitting air.

JAMES WOOD.

Vitnesses NATHAN DAUCHY, ROBERT M. SMITH. 

